The '''roads and freeways in metropolitan Detroit''' comprise the main thoroughfares in the region. The freeway
s consist of an advanced network of interconnecting freeways which include Interstate highway
s. The Metro Detroit
region's extensive toll-free freeway system, together with its status as a major port city, provide advantages to its location as a global business center.
There are no toll roads in Michigan
Detroiters may refer to freeways by the formal name more often where one has been designated rather than route number. Other freeways without formal names are known by the number such as Interstate 275 (Michigan)|I‑275
and M-59 (Michigan highway)|M‑59
. M‑53, while not officially designated may be locally referred to by its name "Van Dyke". Detroit area freeways are typically sunken below ground level to permit local traffic to pass over the freeway and for appearance.